Vocabulary

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Vain :a narrow slab of a mineral that is sharply different from the surrounding rock
Solution: a mixture of which one substance is dissolved in another .

outline

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• The ways minerals form
  • There are two general ways most minerals form.
    • Crystallized from melted materials.
    • Crystallized from materials that have dissolved in water.
• Minerals from Magma
  • When magma cools inside the crust, minerals form.
    • Crystal size
      • How fast magma cools, how much gas the magma has, and the chemical composition of the magma all effects the crystal size.
• Minerals formed by hot water solutions
  • During the process of cooling, the hot water solution makes crystals.
• Minerals from Evaporation
  • When solutions evaporate, they leave crystals.
    • An example is halite.
      • Halite is from evaporated sea-water.
• Places where there are minerals
  • The crust of the Earth is mostly made up of minerals combined in different type of rocks.
    • Rare minerals and rocks are not evenly spread around the Earth's crust.